JP2001040394A - Detergent composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a detergent composition which is in the state of a liquid or gel, retains a viscosity suitable for cleaning, and provides refreshing feeling when used by compounding a higher fatty acid salt and a betaine having a long-chain hydrocarbon group, each in a specified amount. SOLUTION: This detergent composition contains 1-25 wt.% higher fatty acid salt (A) and 1-25 wt.% betaine having a long-chain hydrocarbon group (B). Preferably, ingredient A is selected from among higher fatty acid salts represented by the formula: R1COOM1 [wherein R1 is an (un)saturated hydrocarbon group having, on average, 8-22 carbon atoms; and M1 is an alkali or alkaline earth metal, ammonium or an organic amine]. Preferably, ingredient B is selected from among compounds represented by the formula (wherein R2 is R1 provided that ingredient B mainly comprises a compound wherein R2 denotes a saturated hydrocarbon group having, on average 14 carbon atoms). Preferably, ingredient B satisfies the relation: the amount of compounds compounded of which R2 denotes a saturated hydrocarbon group having, on average, 14 carbon atoms > the amount of compounds compounded of which R2 denotes a saturated hydrocarbon group having, on average, 12 carbon atoms > the amount of compounds compounded of which R2 denotes a saturated hydrocarbon group having, on average, 10 carbon atoms.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a cleaning composition. More specifically, human skin, which has a liquid-to-gel appearance, maintains a sufficient viscosity suitable for washing, has a refreshing feeling, has low skin irritation, and has excellent long-term stability. The present invention relates to a cleaning composition for cleaning hair and the like.

[0002]

BACKGROUND OF THE INVENTION Higher fatty acid salts have hitherto been widely used as skin cleansing agents for a wide range of skin sites such as the face, body, hands, etc. due to their refreshing feel. Depending on the intended use, higher fatty acid salts are provided in various dosage forms, such as solid, liquid, gel, paste, and powder.

[0003] However, among the above-mentioned dosage forms, liquid to gel forms have a high viscosity due to the property that the higher fatty acid salt is derived from the carboxylic acid at the terminal of the counter ion which is present in the chemical structure. It was difficult to maintain. For this reason, some products have a thickening effect by compounding a thickening polymer, but in this case, slimming occurs during use, and the higher fatty acid salt originally loses the refreshing feel of use,
There was a problem with usability.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to provide a liquid to gel-like appearance, maintain a sufficient viscosity suitable for washing, have a refreshing feeling of use, and reduce skin irritation. An object of the present invention is to provide a detergent composition for cleaning human skin, hair, and the like, which is low and has excellent long-term stability.

[0005]

Means for Solving the Problems As a result of intensive studies to solve the above problems, the present inventors have solved the above problems by blending a higher fatty acid salt and betaine containing a long chain hydrocarbon group in a specific amount. The inventors have found that the present invention can be solved, and based on this, have completed the present invention.

That is, the present invention relates to a detergent composition comprising (A) 1 to 25% by weight of a higher fatty acid salt and (B) 1 to 25% by weight of betaine containing a long-chain hydrocarbon group. .

In the above, the component (A) is represented by the following general formula (I)

[0008]

R ¹ —COOM ¹ (I) (wherein, R ¹ represents a saturated or unsaturated hydrocarbon group having an average of 8 to 22 carbon atoms; M ¹ represents an alkali metal or an alkaline earth metal) , Ammonium or organic amines) are preferably used.

The component (B) includes the following general formula (I)
I)

[0010]

Embedded image

(Wherein R ² represents a saturated or unsaturated hydrocarbon group having an average of 8 to 22 carbon atoms), and one or more compounds selected from the group consisting of:
A compound in which R ² represents a saturated hydrocarbon group having an average of 14 carbon atoms as a main component of the component (B) is preferably used.

Further, in addition to the components (A) and (B),
Further, as the component (C), a mixture of one or more selected from organic acids, inorganic acids, and salts thereof is preferably used.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail.

The higher fatty acid salt as the component (A) used in the present invention has the following general formula (I):

[0015]

Embedded image R ¹ —COOM ¹ (I)

Wherein R ¹ represents a saturated or unsaturated hydrocarbon group having an average of 8 to 22 carbon atoms; M ¹ represents an alkali metal, an alkaline earth metal, ammonium or an organic amine. Those represented by are preferably used.

In the above, an alkyl group is particularly preferable as the saturated hydrocarbon group, and an alkenyl group is particularly preferable as the unsaturated hydrocarbon group. Specific examples of R ¹ include single fatty acids such as capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, and oleic acid, as well as coconut oil fatty acids, palm oil fatty acids, and tallow fatty acids. You. M
Examples of ¹ include lithium, potassium, sodium, calcium, magnesium, ammonium, monoethanolamine, triethanolamine and the like. As the component (A), one type or two or more types can be used. (A)
Specific examples of the component include coconut oil fatty acid triethanolamine and coconut oil fatty acid potassium. Among them, coconut oil fatty acid triethanolamine, coconut oil fatty acid potassium and the like are particularly preferably used.

The amount of the component (A) is from 1 to 5 in the composition of the present invention.
25% by weight. If it is less than 1% by weight, a sufficient refreshing feeling cannot be obtained, while if it exceeds 25% by weight, an appropriate viscosity cannot be obtained, which is not preferable.

The betaine containing a long-chain hydrocarbon group as the component (B) is represented by the following general formula (II):

[0020]

Embedded image

(Wherein, R ² represents a saturated or unsaturated hydrocarbon group having an average of 8 to 22 carbon atoms), and one or more compounds selected from the group consisting of:
A compound in which R ² represents a saturated hydrocarbon group having an average of 14 carbon atoms as a main component of the component (B) is preferably used.

In the above, an alkyl group is particularly preferred as the saturated hydrocarbon group, and an alkenyl group is particularly preferred as the unsaturated hydrocarbon group. In the above formula, R ² is, for example, C ₁₀ H
_{21, C 12 H 25, C} 14 H 29, C 16 H 33, C 18 H 37, C 14 H
₂₇ , C ₁₆ H _{30 and the} like. Among them, C ₁₄ H ₂₉ and C ₁₂ H
₂₅ , C ₁₀ H _{21 and the} like are preferable, and C ₁₄ H ₂₉ is particularly preferable.

As the component (B), for example, a compound represented by the general formula (I)
In the long chain hydrocarbon group-containing betaine represented by I),
If the average number of carbon atoms of R ² includes those 10, 12, 14, saturated hydrocarbon in the amount> R ² is an average 12 carbon atoms in the compounds R ² represents a saturated hydrocarbon group having an average carbon number 14 the amount of the compound represents hydrogen radical> of R ² is formulated with the compound amount of a relationship showing saturated hydrocarbon group having an average carbon number 10 is preferred in order to obtain a sufficient viscosity. In particular,
It is most preferable that the compound represented by the general formula (II) in which R ² represents a saturated hydrocarbon group having an average of 14 carbon atoms accounts for 90% or more in the component (B).

The amount of the component (B) is 1 to 3 in the composition of the present invention.
25% by weight. If it is less than 1% by weight, sufficient viscosity cannot be obtained, while if it exceeds 25% by weight, long-term stability is not excellent, which is not preferable.

In the present invention, in addition to the above components (A) and (B), one or more selected from organic acids, inorganic acids, and salts thereof as component (C) from the viewpoint of viscosity adjustment. More than one species can be blended.

As the component (C), for example, hydrochloric acid, sulfuric acid, sodium chloride, potassium chloride, citric acid, lactic acid,
Tartaric acid, phthalic acid, trisodium citrate, sodium lactate and the like can be mentioned.

When the component (C) is blended, the blending amount is preferably about 0.01 to 10% by weight in the composition of the present invention.

The detergent composition of the present invention may further comprise, in addition to the above-mentioned components, polyhydric alcohols, polysaccharides, protein derivatives, and the like in a quantitative and qualitative range according to the purpose, without impairing the effects of the present invention.
Components generally blended in the detergent composition, such as drugs, antioxidants, ultraviolet absorbers, dyes, and fragrances, may be added.

Here, the polyhydric alcohol includes 1,2-
Propanediol, 1,3-propanediol, 1,2
-Butanediol, 1,3-butanediol, 1,4-
Butanediol, dipropylene glycol, glycerin, diglycerin, sorbitan, sorbitol, maltitol, glucose, sucrose and the like.

Examples of the polysaccharide include hyaluronic acid, chondroitin sulfate, dermatan sulfate, keratan sulfate, heparan sulfate and salts thereof.

Drugs include vitamin C, vitamin E
, Amino acids, crude drugs, anti-inflammatory agents, bactericides, and other commonly used drugs for cosmetics.

[0032]

EXAMPLES Next, the present invention will be described in more detail with reference to Examples, but the present invention is not limited thereto. In addition, all compounding amounts are weight%.

Prior to the examples, test methods and evaluation methods employed in each example will be described.

[Viscosity suitable for washing] After the preparation of the sample, an actual use test was carried out by a specialized panel (20 persons) on whether or not there was any liquid leakage from the hand when the sample was taken with the test product. Was. (Evaluation) ：: Out of 20 persons, 15 or more admitted that there was no liquid leakage, and good. Δ: Out of 20 persons, 10-14 persons admitted that there was no liquid leakage, and good ×: 20 persons Among them, 5 to 9 persons recognized that there was no leakage and was good.

[Maintenance of Viscosity] After the preparation of the sample,
℃, room temperature (25 ℃), after storage at a temperature of 50 ℃ for one month, to maintain the viscosity suitable for washing, the presence or absence of liquid from the hand when taken in the face wash, The actual use test was performed by a specialized panel (20 persons). (Evaluation) ：: 15 or more out of 20 persons recognized that there was no liquid leakage in each of the temperature-preserved products, and Δ was good. ×: Out of the 20 persons, 5 to 9 persons recognized that there was no liquid leakage in each of the temperature-preserved products and that they were good.

[Evaluation of Use Feeling (Refreshing Feeling)] An actual use test using the prepared sample was carried out by a specialized panel (20 persons). The judgment was made based on the following criteria for skin feel immediately after rinsing. (Evaluation) ：: Out of 20 persons, 15 or more persons recognized that the skin was refreshed and good △: Out of 20 persons, 10 to 14 persons recognized that the skin was refreshing and good ×: 20 persons Medium, 9 or less admitted that the skin was refreshing and good

[Skin Irritation (Conductance)] A 10% diluted solution of a sample was brought into contact with the same site for 5 consecutive days using the inside of the forearm of 10 healthy men, and the skin conductance before and after the test was measured. Contact test once a day
The test site was rinsed once with ion-exchanged water after contact for 5 minutes. During the test period, cleaning of the test site was restricted. The ratio of the skin conductance after the test to the skin conductance before the test was calculated, and the average value of 10 subjects was calculated and evaluated as follows. (Evaluation) ：: Average skin conductance ratio 1.05 or more ○: Average skin conductance ratio 0.95 or more
Less than 1.05 ×: Average skin conductance ratio less than 0.95

[Long-term stability] The prepared samples were stored at 0 ° C., room temperature (25 ° C.) and 50 ° C., and their appearance and color tone were observed. Stability after 2 months was evaluated as follows. . (Evaluation) ：: No problem in appearance and color tone of each temperature-preserved product △: Slight discoloration in high temperature range or slight precipitate in low temperature range ×: Significant discoloration in high temperature range or large amount in low temperature range Precipitates were confirmed

(Examples 1 to 12, Comparative Examples 1 to 6) A cleaning composition having the composition (% by weight) shown in the following Tables 1 to 3 was prepared, and its viscosity, maintenance of the viscosity, and feeling of use were prepared. (Freshness), low irritation to skin, and long-term stability were examined. The results are shown in Tables 1 to 3.

[0040]

[Table 1]

[0041]

[Table 2]

[0042]

[Table 3]

As is evident from the results of Tables 1 to 3, the detergent composition of the present invention has all of the following properties: viscosity, viscosity maintenance, use feeling (freshness), safety (skin irritation), and long-term stability. Showed excellent performance.

(Example 13) Gel detergent (combination component) (wt%) coconut oil fatty acid triethanolamine 10 myristyldimethylaminoacetic acid betaine 10 glycerin 5 citric acid 0.5 dodecane-1,2-diolacetic acid Ether sodium 5 Perfume Appropriate amount Purified water Residue (Preparation method) The above components were dissolved by heating to 70 ° C and cooled to 30 ° C to prepare a gel detergent.

(Example 14) Gel detergent (combination component) (wt%) coconut oil fatty acid triethanolamine 12 myristyldimethylaminoacetate betaine 8 glycerin 10 citric acid 0.5 N-coconut oil fatty acid-N- Sodium methyltaurine 5 POE hydrogenated castor oil 1 Perfume Appropriate amount Purified water Residue (Preparation method) Each of the above components was heated and dissolved at 70 ° C, and cooled to 30 ° C to prepare a gel detergent.

(Example 15) Hair shampoo (combination component) (wt%) coconut oil fatty acid triethanolamine 5 myristyl dimethylaminoacetic acid betaine 5 glycerin 1 citric acid 0.5 dodecane-1,2-diol sodium acetate 5 N-coconut oil fatty acid-N-methyl taurine sodium 10 Cationized cellulose 0.5 Perfume Appropriate amount Purified water residue (Preparation method) Each of the above components was dissolved by heating to 80 ° C and cooled to 30 ° C to prepare a hair shampoo. .

(Example 16) Facial wash foam (combination component) (% by weight) Coconut oil fatty acid potassium 25 Myristyl dimethylaminoacetate betaine 5 Glycerin 20 Stearic acid 0.5 Dodecane-1,2-diol acetate sodium ether 3 Oxidation Titanium 0.2 Perfume Appropriate amount Purified water Residue (Preparation method) The above components were heated to 80 ° C. to dissolve and cooled to 30 ° C. to prepare a face-wash foam.

(Example 17) Body shampoo (combination component) (% by weight) Potassium coconut oil fatty acid 15 Betaine myristyl dimethylaminoacetate 10 Propylene glycol 1 Sodium ether acetate dodecane-1,2-diol acetate 5 N-coconut fatty acid -N-methyltaurine sodium 1 Perfume Appropriate amount Purified water residue (Preparation method) Each of the above components was dissolved by heating to 80 ° C and cooled to 30 ° C to prepare a body shampoo.

All of the cleaning compositions of Examples 13 to 17 were excellent in viscosity, maintenance of viscosity, usability (freshness), low skin irritation, and long-term stability.

[0050]

As described above in detail, according to the present invention, human beings having excellent usability (freshness), low skin irritation and long-term stability while maintaining sufficient viscosity suitable for washing. Thus, a detergent composition used for the skin, hair and the like of the present invention can be obtained.

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Nohito Ogura 1050 Niiwacho, Kohoku-ku, Yokohama, Kanagawa Prefecture Inside Shiseido Daiichi Research Center Co., Ltd. Shiseido Daiichi Research Center Co., Ltd. (72) Inventor Taishi Kishida 1050 Nippa-cho, Kohoku-ku, Yokohama, Kanagawa Prefecture (72) Inventor Tomoyuki Monma Nippacho, Kohoku-ku, Yokohama, Kanagawa Prefecture 1050 F-term in Shiseido Daiichi Research Center (reference) 4H003 AB03 AB05 AB23 AB46 AD04 BA12 BA15 DA02 EA03 EA19 EB05 EB08 EB42 ED02 FA02 FA16 FA21

Claims (6)

[Claims] (1) 1 to 25% by weight of a higher fatty acid salt
And (B) 1 to 25% by weight of betaine containing a long-chain hydrocarbon group. Wherein component (A) is represented by the following general formula (I) ## STR1 ## R ¹ -COOM ¹ (I) (wherein, the hydrocarbon of R ¹ is an average 8 to 22 carbon atoms, saturated or unsaturated And M ¹ is one or more selected from higher fatty acid salts represented by the following formulas: M ¹ represents an alkali metal, an alkaline earth metal, ammonium or an organic amine). Cleaning composition. The component (B) is represented by the following general formula (II): (Wherein, R ² mean a hydrocarbon group of a saturated or unsaturated 8 to 22 carbon atoms) is one or more selected from the compounds represented by, and the R ² The cleaning composition according to claim 1 or 2, wherein the compound which represents a saturated hydrocarbon group having an average of 14 carbon atoms is a main component of the component (B). 4. The compound (B) in which the compound represented by the general formula (II) has a compounding ratio in which R ² has an average number of carbon atoms of 1
Compounds showing a 4 saturated hydrocarbon group> R ² is a compound that shows a saturated hydrocarbon group of compound> R ² the average carbon number 10 indicating a saturated hydrocarbon group having an average carbon atom number of 12, claim 3, wherein Cleaning composition. 5. A compound represented by the formula (II) wherein R ^{2 of the} formula (II) is a saturated hydrocarbon group having an average of 14 carbon atoms.
The cleaning composition according to claim 4, which accounts for 0% or more. 6. The cleaning according to claim 1, further comprising (C) one or more selected from organic acids, inorganic acids, and salts thereof. Composition.